module Vector: sig .. end
type Diagrams.Point.t
val of_points : float * float -> float * float -> float * float
val scal_mul : float -> float * float -> float * float
val ( * ) : float -> float * float -> float * float
val (+) : float * float -> float * float -> float * float
val (-) : float * float -> float * float -> float * float
val (<>) : float * float -> float * float -> float
val minus : float * float -> float * float
val translate : float * float -> float * float -> float * float
val rotate : float -> float * float -> float * float
val norm : float * float -> float
val normalise : ?norm:float -> float * float -> float * float
val turn_left : 'a * float -> float * 'a
val turn_right : float * 'a -> 'a * float
val unit : float -> float * float
val angle : float * float -> float
val sector : float * float -> float * float -> float
val det : float * float -> float * float -> float